SipAddress specifies the SIP address of the contact object. This must be an address that has not already been used to configure a user or contact object in Active Directory Domain Services. This value must be in the format “sip:<SIP address>“ as shown in the previous examples.

RegistrarPool specifies the fully qualified domain name (FQDN) of the pool on which the Registrar service is running.

Note:

Exchange UM contact objects cannot be moved to pools that are part of Lync Server 2013 deployments prior to Lync Server 2013.

OU specifies the Active Directory organizational unit where this contact object will be located.

DisplayNumber specifies the telephone number of the contact object. The phone number for each contact object must be unique.

AutoAttendant specifies whether the Contact object is an Auto Attendant. Auto Attendant provides a set of voice prompts that allow callers to navigate the phone system and reach the party that they want to contact. A value of False (the default) for this parameter indicates a Subscriber Access contact object.